Carbon isotope geochemistry (delta C-13) as stratigraphic tool. A case study of the Cenomanian/Turonian boundary in central Tunisia

被引：0

作者：

Accarie, H

Emmanuel, L

Robaszynski, F

Baudin, F

Amedro, F

Caron, M

Deconinck, JF

机构：

[1] UNIV BOURGOGNE,CTR SCI TERRE,F-21000 DIJON,FRANCE

[2] FAC POLYTECH,B-7000 MONS,BELGIUM

[3] UNIV PARIS 06,DEPT GEOL SEDIMENTAIRE,F-75252 PARIS 5,FRANCE

[4] UNIV PARIS 06,CNRS,URA 1761,F-75252 PARIS 5,FRANCE

[5] UNIV FRIBOURG,INST GEOL,CH-1700 FRIBOURG,SWITZERLAND

[6] UNIV LILLE,LAB SEDIMENTOL & GEODYNAM,F-59655 VILLENEUVE DASCQ,FRANCE

[7] CNRS,URA 719,F-59655 VILLENEUVE DASCQ,FRANCE

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES | 1996年 / 322卷 / 07期

关键词：

cenomanian; Turonian; Tunisia; stratigraphy; carbon-isotope; correlation;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The carbon isotope profile (delta(13)C) around the Cenomanian/Turonian boundary is defined in central Tunisia on a section which is dated by ammonites. A positive excursion of delta(13)C that occurs in several sections from other palaeogeographic realms has also been observed in Tunisia. As this excursion is regarded as a global geochemical oceanic event, the carbon isotope profile from the oued Smara is correlated with those of Pueblo, Dover and Menoyo using the palaeontological data. The carbon isotope signature was then used to determine the position of the Cenomanian/Turonian boundary in the Tunisian section.

引用

页码：579 / 586

页数：8

共 25 条

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